Floating wind turbine foundation

Abstract

The invention provides a floating wind turbine foundation. A tower and a wind turbine are borne by a first cylinder on the upper layer, a float is arranged through a second cylinder on the lower layer, and the first cylinder and the second cylinder are arranged in a nested manner and can rotate relative to each other. According to the floating wind turbine foundation, the wind turbine, the tower and the first cylinder are connected into a whole which can rotate freely relative to the second cylinder, a wind indicator effect is produced, automatic adjustment of the load direction is achieved, and in cooperation with a yaw system on the wind turbine, wind energy can be captured and utilized to the greatest extent; and multi-point distributed tension-leg mooring chains are adopted for anchoring to achieve a single-point mooring effect, the anchoring chains replace a tension tendon system, and the adaptability of the floating wind turbine foundation to different water depth environments isimproved on the premise of ensuring the motion performance of a typical tension-leg platform.

Description

technical field [0001] The invention relates to a floating fan foundation, in particular to a floating fan foundation anchored by multi-point distributed tension leg mooring chains and formed with a rotor system. Background technique [0002] With the development and utilization of wind energy in renewable energy, wind turbines are gradually shifting from land to offshore, and gradually from offshore to deep sea. During this process, a variety of forms of offshore floating wind turbine foundations have emerged. Among them, there are four types: single column type (SPAR), semi-submersible (Semi-Submersible), tension leg type (TLP) and ship type (Barge). Types of floating fan foundations are the most common. [0003] At present, European and American countries are in a leading position in the research and development capabilities and investment of floating wind turbine foundations. Among them, the most representative types of floating wind turbine foundations, for example, t...

AI Technical Summary

Problems solved by technology

In addition, if the relevant design and technology of the floating wind turbine foundation in Europe are directly imported, not only the cost is high, but also these forms are not the most suitable for the water depth of the offshore waters currently developed in our country.

[0009] In addition, after reviewing relevant patents, documents and materials, it was found that, except for a type developed and developed by SBM Offshore that has not yet been formally commercialized, floating fans using tension legs are basically blank

The reason is mainly because the tension leg platform (TLP platform) used in the traditional offshore oil and gas industry, the research and development, construction and installation of the tension tendon system are expensive, which can be tolerated for large oil and gas production platforms, but for only Too expensive for a floating foundation with a wind turbine

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